Kotlin开发中抽屉导航栏无法在主Activity及后续Activity正常显示的问题求助

我最近开发Android应用时碰到了个棘手的问题：抽屉导航栏没办法在主Activity的布局里正常显示出来。我用的是Kotlin语言，尝试过把DrawerBaseActivity作为基类让其他Activity继承，但还是没解决问题。每次我把绑定换成ActivityMainBinding或者DrawerBaseActivityBinding，APP就只能单独显示主Activity布局或者抽屉布局，没法把二者整合起来。

我的预期效果是：APP启动后，主Activity就能触发抽屉导航栏，而且之后添加的其他Activity也能正常调用这个抽屉导航。

下面是我的相关代码：

MainActivity.kt #

package com.cameron.armymaintenance

import android.os.Bundle
import androidx.appcompat.app.AppCompatActivity
import com.cameron.armymaintenance.databinding.ActivityMainBinding

class MainActivity : AppCompatActivity() {

    private lateinit var binding: ActivityMainBinding

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        binding = ActivityMainBinding.inflate(layoutInflater)
        setContentView(binding.root)
    }
}

DrawerBaseActivity.kt #

package com.cameron.armymaintenance

import android.view.MenuItem
import android.view.View
import android.widget.FrameLayout
import androidx.appcompat.app.ActionBarDrawerToggle
import androidx.appcompat.app.AppCompatActivity
import androidx.appcompat.widget.Toolbar
import androidx.drawerlayout.widget.DrawerLayout
import com.google.android.material.navigation.NavigationView

class DrawerBaseActivity : AppCompatActivity(), NavigationView.OnNavigationItemSelectedListener {

    var drawerLayout: DrawerLayout? = null

    override fun setContentView(view: View?) {
        drawerLayout = layoutInflater.inflate(R.layout.activity_drawer_base, null) as DrawerLayout
        val container = drawerLayout!!.findViewById<FrameLayout>(R.id.activityContainer)
        container.addView(view)
        setContentView(R.layout.activity_drawer_base)

        val toolbar = drawerLayout!!.findViewById<Toolbar>(R.id.toolBar)
        setSupportActionBar(toolbar)

        val navigationView = drawerLayout!!.findViewById<NavigationView>(R.id.nav_view)
        navigationView.setNavigationItemSelectedListener(this)

        val toggle = ActionBarDrawerToggle(
            this,
            drawerLayout,
            toolbar,
            R.string.menu_drawer_open,
            R.string.menu_drawer_open
        )
        drawerLayout!!.addDrawerListener(toggle)
        toggle.syncState()
    }

    override fun onNavigationItemSelected(item: MenuItem): Boolean {
        return false
    }

    private fun allocateActivityTitle(titleString: String?) {
        if (supportActionBar != null) {
            supportActionBar!!.title = titleString
        }
    }
}

activity_drawer_base.xml #

<?xml version="1.0" encoding="utf-8"?>
<androidx.drawerlayout.widget.DrawerLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".DrawerBaseActivity"
    tools:openDrawer="start"
    android:fitsSystemWindows="true">

    <include layout="@layout/content_layout"
        android:layout_height="match_parent"
        android:layout_width="match_parent"/>

    <com.google.android.material.navigation.NavigationView
        android:id="@+id/nav_view"
        android:layout_width="wrap_content"
        android:layout_height="match_parent"
        android:fitsSystemWindows="true"
        android:layout_gravity="start"
        app:headerLayout="@layout/main_drawer_header"
        app:menu="@menu/main_drawer_menu"/>

</androidx.drawerlayout.widget.DrawerLayout>

content_layout.xml #

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <com.google.android.material.appbar.AppBarLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:id="@+id/appBarLayout"
        app:layout_constraintTop_toTopOf="parent">

        <androidx.appcompat.widget.Toolbar
            android:id="@+id/toolBar"
            android:layout_width="match_parent"
            android:layout_height="?attr/actionBarSize"
            android:background="@color/Gray"
            app:titleTextColor="@color/White"/>

    </com.google.android.material.appbar.AppBarLayout>

    <FrameLayout
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:id="@+id/activityContainer"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintTop_toBottomOf="@id/appBarLayout"/>

</androidx.constraintlayout.widget.ConstraintLayout>

备注：内容来源于stack exchange，提问作者DCam